The answers that applly are
1. Kidneys Filter waste from Blood ( so the waste can be thrown out through urine)
2. Kidnesys reabsorb nutrients from the blood ( During the process of creating urine, so our body doesnt throw out important nutrients for our body)
3. Oxygenate blood ( kidney helps produce blood cells that could deliver oxygen)
Thats all.
Answer:
The body's homeostatic control mechanisms ensure that a balance between fluid gain and fluid loss is maintained.
Explanation:
O2. because this gas is metabolized and will be more efficiently used as time goes on
